You are assigned to supervise an earthwork for a road construction, leveling it down to 30 m. The site consists of interbedded completely to highly weathered sandstone and shale Discuss on direct and indirect excavation assessment prior to the earthwork. If blasting work has to be employed, discuss the consideration on blast design to be employed. Discuss the pre-splitting method that should be carried out to achieve smooth surface on the slope face.

Q: The measured value of total number of blows (N) in a bore hole is found to be 20. The depth of the…

A: The provided information includes:1. The measured value of total number of blows (N) in a bore hole…

Q: Q4) Determine the required SOR and scour velocity in a grit chamber to remove grit particles of 0.23…

A:

Q: Describe in as much detail as you can on how rock mechanical properties are measured (experimental…

A: Rock mechanical properties -  Elastic modulus, Poisson's ratio, and rock strength are the most…

Q: Calculate how long it will take for consolidation to be almost completed (reach ca. 95% of ultimate…

A: Data is as shown

Q: A 20-ft-deep cut for a basement excavation is specified to be sloped at 1:2 (one horizontal to two…

A: Given: A 20-ft-deep cut for a basement excavation is specified to be sloped at 1:2 (one horizontal…

Q: 2. For the purposes of calculating the maximum stress in a braced cut, what are the primary factors…

A:

Q: Ox (psi) 2000 To (Cohesion) (psi) 1000 50 Oy (psi) 1800 (Internal friction angle), º Po (psi) 1000…

A: Given; = 2000 psi σy = 1800 psi Po = 1000 psi

Q: Consider excavation of a simple long trapezoidal pit with a joint highlighted in the pit slope,…

A:

Q: Given A standard penetration test (SPT) was performed at a depth of 3.75 m below the ground surface…

A: Given- Standard penetration test SPT- Depth d=3.75 m, Unit weight of soil = 20.72 kN/m3, Blow counts…

Q: A standard penetration test has been conducted on a coarse sand at a depth of 16 ft below the…

A: Raw value of SPT no. is considered for last  12" panentration N=6+6=12Hammer efficiency  for  US…

Q: Consider a 10 m deep excavation into a saturated clay with cohesive strength = 25 kPa and unit…

A: given data case 1 depth=10m unit weight = 19kN/m3 case 2 depth = 5m unit weight 19kn/m3

Q: 1. A standard penetration test was performed in a 150-mm diameter boring at a depth of 9.5 m below…

A:

Q: A cut of 5m is made in a 10m thick layer of stiff saturated clay which is underlain by a layer of…

A: According to given data   A cut of 5m is made in a 10m thick layer of stiff saturated clay which is…

Q: A drilled shaft is constructed in a uniform clay layer of 40 ft. and tipped in a uniform, dense sand…

A:

Q: Similar to Question 3, a square footing supporting a column applies a uniform pressure of 100 kPa on…

A: Data given

Q: A vertical cut is made in a purely cohesive soil with a volumetric weight of ym = 1.90 cohesion of…

A:

Q: soil strata can be described as 6 meters of sand underlain by 4 meters of clay with the water table…

A:

Q: -> Find the preconsolidation pressure for curve below -> Find Compression Index, (Cc) and Swell…

A: Find:

Q: Styles 1.A shaft is to be excavated in the layered soil profile shown here. Assume Ko lateral earth…

A:

Q: iscuss, evaluate and propose a suitable excavation and lateral support system(s) (ELS) for the…

A: Step 1: Discussion: From the given data, it is described that Project A has site area 750 m2, 78 m…

Q: A single liquid limit test yields a moisture content of 45% for 29 blows. a) Using the one-point…

A: Given:  Moisture Content w = 45% No. of Blows = 29

Q: A cohesionless soil was undertaken a standard penetration test (SPT) and the three readings (blows…

A: Given:- The three reading for the SPT test are given  For first 6" depth = Number of blows = 8 For…

Q: a) Calculate the magnitude of the resultant force b) Calculate the location of the resulting force…

A:

Q: A standard penetration test (SPT) was performed at a depth of 3.75 m below the ground surface in a…

A:

Q: tion rate of 2.1 ft/min. Assume that it takes 5 mi ills use 12-ft steel. The blasting pattern will…

A:

Q: A shovel having a 6-cy bucket whose cost per hour, including the wages to an operator, is $85 will…

A: The capacity of a shovel (Q) = 6 cy The cost per hour including wages = $85 The swell percent = 60%…

Measuring site work, Excavation and Piling

Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not provided and also the dimensions of the excavations are not known during the pre-construction phase. The precise measurement of the excavation and backfill of the earth material and topsoil is important for a contractor to decide upon the total cost required for the process. All the works should be carried out under OSHA (Occupational Safety and Health Administration) standards to ensure the safety of the workers.